http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5986622-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_630b360599ea5cf4b5bcbc0c6c0a3e2d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-181 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-78 |
| filingDate | 1982-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_79b76fbe5f73ebf0d21a981ec9a409c2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_887ab0bbd9e5e0b14fc2788fbcdd517d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_41d5b0b24b98bc985d9852c2d59e3ff6 |
| publicationDate | 1984-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5986622-A |
| titleOfInvention | Production of polybutylene terephthalate of low terminal-carboxyl group content |
| abstract | PURPOSE: To produce the titled polybutylene terephthalate having excellent wet- heat stability, by adding a specified catalyst to a mixture of dimethyl terephthalate or terephthalic acid and 1,4-butanediol and starting pressure reduction to effect a polycondensation reaction. n CONSTITUTION: To a mixture of dimethyl terephthalate or terephthalic acid and 1,4-butanediol are added 0.001W0.5wt%, based on the produced polybutylene terephthalate, stannous oxalate and a titanium compound of the formula: Ti(OR) 4 (wherein R is alkyl or aryl) and, if necessary 50W2,000ppm of an alkali metal hypophosphite. The resulting mixture is esterified or transesterfied at 120W250°C for 2W4hr and then polycondensed at 200W300°C for 2W4hr in a vacuum of below 3mmHg. n COPYRIGHT: (C)1984,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2001114881-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0290287-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6936393-B2 |
| priorityDate | 1982-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.